California Reservoir Levels Today

Q: Where does this data come from?

All data is sourced from the USGS Water Services API. USGS monitoring stations continuously record water elevation, discharge, and temperature data.

Real-time water levels, flow rates, and temperatures for 878 water bodies across California. Data from USGS sensors, updated daily.

104

Reservoirs

704

Lakes

Rivers

About California Reservoir Levels

California's reservoir system is one of the most complex and critical water infrastructure networks in the United States. With a Mediterranean climate that brings most rainfall during winter months, the state relies heavily on reservoirs to store water for agricultural, municipal, and environmental use throughout the dry summer and fall seasons.

Major reservoirs like Lake Shasta (the state's largest), Lake Oroville, Folsom Lake, Don Pedro Reservoir, and Pine Flat Reservoir serve as critical indicators of water supply health. During drought years, reservoir levels can drop significantly, leading to water use restrictions and ecological impacts.

This page provides real-time water level data for all California water bodies monitored by the USGS, including reservoirs, natural lakes, and rivers. For statewide trends and historical comparisons, the California Department of Water Resources (CDEC) also provides valuable data through their reservoir monitoring system.

Looking for other states? Check out Texas lake levels, Arizona reservoir levels, or browse our national dashboard for all 50 states.

California Reservoir FAQ

What are the current California reservoir levels?

California reservoir levels are updated daily from USGS monitoring stations. The data above shows current water elevations for all 878 monitored water bodies in California. Each card displays the current water surface elevation in feet above sea level, and where available, the percentage of full pool capacity.

Are California reservoirs full?

Reservoir capacity varies throughout the year and depends on precipitation, snowmelt, and water demand. Check the capacity percentage shown on each reservoir card above, or click through to individual pages for more detailed data including historical trends.

Where does this data come from?

All data is sourced from the United States Geological Survey (USGS) Water Services API. The USGS operates monitoring stations at reservoirs, lakes, and rivers throughout California that continuously record water elevation, discharge rate, and temperature. Our system syncs with this data daily.

California Reservoir Levels Today

Alder C Nr White Hall (Creek Only) Ca

All-American Canal Below Drop 2 Reservoir Outlet

All-American Canal Nr Imperial Dam, Ca-Az

Big C Nr Mouth Nr Big Creek Ca

Big C Ph No 2 Nr Big Creek Ca

Big C Ph No 2A Nr Big Creek Ca

Big C Ph No 8 Nr Big Creek Ca

Brush C Bl Brush Creek Dam Nr Pollock Pines Ca

Cajon C Bl Lone Pine C Nr Keenbrook Ca

Cantua C Nr Cantua Creek Ca

City C Nr Highland Ca.+ Canals Ca

Coachella Canal Above All-American Canal Diversion

Coachella Canal Near Desert Beach, Ca

Coachella Canal Near Niland, Ca

Colorado R Blw Yuma Main Canal Ww At Yuma, Az

Colorado River Above Imperial Dam, Az-Ca

Colorado River At Needles, Ca

Colorado River Below Imperial Dam, Az-Ca

Colorado River Below Laguna Dam, Az-Ca

Colorado River Below Palo Verde Dam, Az-Ca

Ef Kaweah R Nr Three Rivers Ca

Elliott Creek Near Copper, Or

Fall R A Fall River Mills Ca

Fallbrook C Nr Fallbrook Ca

Hat C Nr Hat Creek Ca

Kern R Nr Democrat Springs(River Only) Ca

Kern R Nr Kernville (River Only) Ca

Knoch Canal A Fall River Mills Ca

Mammoth Pool Fishwater Turbine Nr Big Creek Ca

Mammoth Pool Pp Nr Big Creek Ca

Mf Balsam C Bl Balsam Mdw Forebay Nr Big Creek Ca

Mf Kaweah R Nr Potwisha Camp(River Only) Ca

Mill C Power Canals 2 And 3 Nr Yucaipa Ca

Oneill Lake Outlet Ch Nr Fallbrook Ca

Oneill Lk Spill Ch Nr Fallbrook Ca

Palo Verde Canal Near Blythe, Ca

Panoche C A I-5 Nr Silver Creek Ca

Philbrook C Bl Philbrook Dam Nr Butte Meadows Ca

Piru Creek Above Lake Piru Ca

Piru Creek Below Santa Felicia Dam Ca

Pit No 1 Ph Nr Fall River Mills Ca

Pit No 7 Ph Nr Montgomery Creek Ca

Pit R Bl Pit No 1 Ph Nr Fall River Mills Ca

Pit R No 6 Ph Nr Montgomery Creek Ca

Pit R Nr Montgomery Creek Ca

Pontiac Canal Near Yuma, Az

Pvid C Canal Spill Near Blythe, Ca

Pvid F-Canal Spill Near Blythe, Ca

Rainbow C Nr Fallbrook Ca

Reservation Main Canal Near Yuma, Az

San Antonio C A Indian Creek Road Nr Sunol Ca

San Antonio C A Riverside Drive Nr Chino Ca

San Benito R Nr Willow Creek School Ca

San Joaquin R Ab Shakeflat C Nr Big Creek Ca

San Joaquin R Ab Stevenson C Nr Big Creek Ca

Sandia C Nr Fallbrook Ca

Santa Ana R Canal Greenspot Spill Nr Mentone Ca

Santa Ana R Nr Mentone (River Only) Ca

Santa Margarita R A Fpud Sump Nr Fallbrook Ca

Sespe Creek Near Wheeler Springs Ca

Sf American R Nr Kyburz(River Only) Ca

Sonoma Creek A Kenwood Ca

Toadtown Canal Ab Butte Canal Nr Stirling City Ca

Topaz Canal Blw Div W Walker Rvr Nr Topaz, Ca

Waterman Canyon Creek Nr Arrowhead Springs Ca

Yaqui Canal Near Yuma, Az

Ypsilanti Canal Near Winterhaven, Ca

Yuma Main Canal Above Wasteway Nr Winterhaven, Ca

Yuma Main Canal At Siphon Drop P.P. Nr Yuma, Az

Yuma Main Canal Wasteway At Yuma, Az

Alameda C Ab Div Dam Nr Sunol Ca

Alameda C Bl Div Dam Nr Sunol Ca

American R Bl Folsom Dam Nr Folsom Ca

Angels C Bl Utica D Div Dam Nr Murphys Ca

Bear C Below Div Dam Nr Lake Thomas A Edison Ca

Bear R Bl Bear R Div Dam Ca

Bear R Bl Lo Bear R Dam Ca

Bear R Bl Rollins Dam Nr Colfax Ca

Beaver Cr Bl Div Dam Nr Arnold Ca